NFL

They all try to be insufferable assholes like Bellicheck without the success. I remember the Bill O'Brien days in Houston and even when he was winning the division it was obvious he's a raging asshole. It might work for a little while, and it will even work when the team is winning but unless you're a savant with an all time great QB you can't have a better than you mentality towards adults who are trying to play hard and provide for their families.

Grown men don't respond well to being talked down too and lorded over especially when the coach doing it are just a side kick to the one who's actually been successful.